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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2023
Contractual Obligation [Line Items]  
Contractual Obligation, Fiscal Year Maturity Schedule
The Company has the following firm commitments that are not reflected on the Consolidated Balance Sheet. Minimum payments as of December 31, 2023 are as follows (in millions):
2029 and
20242025202620272028ThereafterTotal
Contract type:
Fuel, capacity and transmission contract commitments
$2,360 $1,666 $1,351 $1,305 $1,189 $12,055 $19,926 
Construction commitments1,883 475 388 67 22 28 2,863 
Easements84 82 82 82 85 3,213 3,628 
Maintenance, service and other contracts
482 459 452 323 258 1,325 3,299 
$4,809 $2,682 $2,273 $1,777 $1,554 $16,621 $29,716 
Schedule of Loss Contingencies by Contingency
The following table presents changes in PacifiCorp's liability for estimated losses associated with the Wildfires for the years ended December 31 (in millions):

202320222021
Beginning balance$424 $252 $252 
Accrued losses1,930 225 — 
Payments(1)
(631)(53)— 
Ending balance$1,723 $424 $252 

(1)Amounts represent payments made to settle certain claims associated with the 2020 Wildfires, including $549 million in December 2023 resulting from the above-described settlement agreements reached in December 2023 associated with the Archie Creek Complex Fire.
The following table presents changes in PacifiCorp's receivable for expected insurance recoveries associated with the Wildfires for the years ended December 31 (in millions):

202320222021
Beginning balance$246 $116 $116 
Accruals
253 161 — 
Payments received
— (31)— 
Ending balance$499 $246 $116 
PAC  
Contractual Obligation [Line Items]  
Contractual Obligation, Fiscal Year Maturity Schedule Minimum payments as of December 31, 2023 are as follows (in millions):
202420252026202720282029 and ThereafterTotal
Contract type:
Purchased electricity contracts -
commercially operable$482 $198 $196 $195 $198 $1,964 $3,233 
Purchased electricity contracts -
non-commercially operable— 34 58 58 58 946 1,154 
Fuel contracts673 425 160 169 156 323 1,906 
Construction commitments891 183 5 2 1 — 1,082 
Transmission105 100 92 80 75 394 846 
Easements13 13 13 13 14 797 863 
Maintenance, service and
other contracts143 117 128 63 54 240 745 
Total commitments$2,307 $1,070 $652 $580 $556 $4,664 $9,829 
Schedule of Loss Contingencies by Contingency
The following table presents changes in PacifiCorp's liability for estimated losses associated with the Wildfires for the years ended December 31 (in millions):
202320222021
Beginning balance$424 $252 $252 
Accrued losses1,930 225 — 
Payments(1)
(631)(53)— 
Ending balance$1,723 $424 $252 

(1)Amounts represent payments made to settle certain claims associated with the 2020 Wildfires, including $549 million in December 2023 resulting from the above-described settlement agreements reached in December 2023 associated with the Archie Creek Complex Fire.
The following table presents changes in PacifiCorp's receivable for expected insurance recoveries associated with the Wildfires for the years ended December 31 (in millions):

202320222021
Beginning balance$246 $116 $116 
Accruals253 161 — 
Payments received— (31)— 
Ending balance$499 $246 $116 
MEC  
Contractual Obligation [Line Items]  
Contractual Obligation, Fiscal Year Maturity Schedule
MidAmerican Energy had the following firm commitments that are not reflected on the Balance Sheet. Minimum payments as of December 31, 2023, are as follows (in millions):
2029 and
20242025202620272028ThereafterTotal
Contract type:
Coal and natural gas for generation$123 $66 $36 $36 $6 $— $267 
Electric capacity and transmission29 29 28 17 7 — 110 
Natural gas contracts for gas operations178 102 91 64 23 14 472 
Construction commitments399 10 5 18 11 — 443 
Easements45 46 47 47 48 1,618 1,851 
Maintenance, services and other159 153 148 126 89 81 756 
$933 $406 $355 $308 $184 $1,713 $3,899 
NPC  
Contractual Obligation [Line Items]  
Contractual Obligation, Fiscal Year Maturity Schedule
Nevada Power has the following firm commitments that are not reflected on the Consolidated Balance Sheet. Minimum payments as of December 31, 2023 are as follows (in millions):
202420252026202720282029 and ThereafterTotal
Contract type:
Purchased electricity contracts - commercially operable
$328 $304 $306 $308 $286 $2,806 $4,338 
Purchased electricity contracts - non-commercially operable
92 122 126 126 125 2,376 2,967 
Fuel contracts
55 54 54 53 47 124 387 
Construction commitments248 76 41 16 9 28 418 
Transmission
8 8 12 10 5 36 79 
Easements4 2 1 1 1 31 40 
Maintenance, service and other contracts25 36 36 19 1 — 117 
Total commitments$760 $602 $576 $533 $474 $5,401 $8,346 
SPPC  
Contractual Obligation [Line Items]  
Contractual Obligation, Fiscal Year Maturity Schedule
Sierra Pacific has the following firm commitments that are not reflected on the Consolidated Balance Sheet. Minimum payments as of December 31, 2023 are as follows (in millions):
2029 and
20242025202620272028ThereafterTotal
Contract type:
Purchased electricity contracts - commercially operable
$124 $119 $120 $112 $106 $1,471 $2,052 
Purchased electricity contracts - non-commercially operable
— 9 25 41 54 1,576 1,705 
Fuel contracts
90 43 26 26 26 81 292 
Construction commitments40 154 305 31 1 — 531 
Transmission
32 12 — — — — 44 
Easements2 2 2 2 2 31 41 
Maintenance, service and other contracts7 15 15 1 1 3 42 
Total commitments$295 $354 $493 $213 $190 $3,162 $4,707